North Korea reevaluate or laugh it off?

Posted on North Koreans YouTube channel they posted yet another video evoking a war the the Us. Army. Could this possibly mean that the U.S. will go to war which could lead to War World III. North Korea claims that 150,000 American citizens will be going into hostage. They described it as the "3 Day War." Maybe we as American Citizen should reevaluate this scenario and ask our government more questions about whats going on.